A consistent backup is achieved when no data is changed between the start and the end of the backup process.
如果在备份过程期间数据没有发生变化，那么就能够获得一致的备份。
Furthermore, every change to any session also creates work for every node, because it has to process an incoming update message and make its backup copy of the session consistent with the changes.
而且，对会话的每次变化都会形成对每个节点的操作，因为节点必须处理进来的消息更新，让会话的备份拷贝与变化一致。
Finally, online backup images of databases and table Spaces will include the set of log files necessary to restore and recover the backup image to a consistent point in time.
最后，数据库和表空间的在线备份镜像将包括一组日志文件，在将备份镜像恢复到某个一致的时间点时，这些文件是必需的。
Recovery activities like logging, checkpointing, backup and reloading are used to restore the database to a consistent state after a system crash has occurred.
为了能在数据库系统发生故障之后将数据库恢复到一个一致性的状态，恢复子系统需要进行记日志、做检验点、备份和故障后重装等活动。
The other benefit of read-write snapshot is you can actually start MySQL Server on it and perform recovery, check tables or do whatever else you might need to do to ensure your backup is consistent.
可读写快照的另一个好处是可以启动MySQL服务器，执行恢复、检察数据表或者其他任何要保证备份一致性所需的操作。
The other benefit of read-write snapshot is you can actually start MySQL Server on it and perform recovery, check tables or do whatever else you might need to do to ensure your backup is consistent.
可读写快照的另一个好处是可以启动MySQL服务器，执行恢复、检察数据表或者其他任何要保证备份一致性所需的操作。
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